SU1636089A1 - Method for manufacture of hollow axisymmteical articles with flange - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to the manufacture of hollow axisymmetric products with a flange of thin-walled tubular billets by the method of face rolling and sphere-moving die-casting. The purpose of the invention is to increase the surface quality of products and expand technological capabilities by expanding the range of workpieces being processed. At the initial moment, the workpiece 1 is completely placed in the matrix 2 and the wall is interleaved between the matrix 2 and the spherical part of the punch 5 with strain degrees of 3-5%. The flange flanging is carried out in the process of axial movement of the workpiece 1 relative to the matrix 2 E) by means of the pullback 3. 3 Il.

Description

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31636089

The invention relates to the processing of metals by pressure, in particular to methods of sphere-moving punching and face rolling of thin-walled tubular blanks.

The aim of the invention is to improve the quality of the surface of products and expand technological capabilities by expanding the range of workpieces.

Figure 1 shows the working area of the device at the end of the compression of the wall of the workpiece; figure 2 - the same, the end of the flanging flange process.

The method is carried out as follows.

The original measuring tubular billet 1 is installed in the matrix 2 so that the workpiece 1 does not protrude from the matrix 2. The workpiece 1 is fixed in the axial direction with the help of the ejector 3. Then turn on the drive of the circular quality movement of the carrier 4 of the spherical sliding mechanics (not shown) and compress billet spherical working part of the punch 5, installed at an angle ОЈ to the axis of the matrix 2.

Axial movement of the punch 5 limit hard stops (not shown). Then, axial movement of the ejector 3 is performed by flanging the workpiece 1. Axial movement of the ejector 3 is limited by a limit switch (not shown). Then, the punch 5 is retracted to the initial position and, continuing the axial movement of the ejector 3, the part 1 is pressed out of the die 2.

Example. The parts with a steel flange are made for stamping parts. In the process of forming, the walls of the blank are compressed between the die and the spherical part of the punch with a degree of deformation of 3-5%. After punching I, the wall thickness of the workpiece and the flange is 1.9-1.95 mm, the diameter of the flange is 62 mm.

The parameters of the stamping process. Working force, kN 400 Ejection force, kN 120 Punch tilt angle, hail 3 Number of punch swings,, 5 Transfer Cycle mode 15-20 After punching, the cleanness of the parts surface corresponds to class 7-8, there are no shear lines on the flange surface.

The use of the proposed method allows to improve the surface quality of parts by combining in one operation reinforcing crimping with flange pgamping and expanding the technological capabilities of the method by expanding the range of workpieces being processed.

Claims (1)

Invention Formula A method of manufacturing hollow axially symmetric products with a flange, including installing a measured billet in a matrix, fixing it in the axial direction and flanging flange mounted at an angle to the matrix axis, characterized in that, in order to improve the surface quality of products and expand technological capabilities by uve25 thirty -, the nomenclature of the processed tubular blanks with a diameter of 40 mm., blanks, billet set Material - steel 1 0 and steel 20 with a thickness of the matrix is flush, the wall is placed-, the walls are 2 mm. The process is carried out on a hydraulic 45 in the matrix of the workpiece is compressed with The press of the model DB 2432, the os-degree of deformation is 3-5%, and at from; axial movement of the SM-1 60 spherical moving mechanism. The workpiece is placed entirely in the matrix of the displacement of the workpiece relative to a gap of 0.04 mm in diameter. 50 dies in the direction of the punch. five In the process of stamping the wall of the workpiece is compressed between the matrix and the spherical part of the punch with a degree of deformation of 3-5%. After punching I, the wall thickness of the workpiece and the flange is 1.9-1.95 mm, the diameter of the flange is 62 mm. The parameters of the stamping process. Working force, kN 400 Ejection force, kN 120 Punch tilt angle, hail 3 Number of punch swings,, 5 Transfer Cycle mode 15-20 After punching, the cleanness of the parts surface corresponds to class 7-8, there are no shear lines on the flange surface. The use of the proposed method allows to improve the surface quality of parts by combining in one operation reinforcing crimping with flange pgamping and expanding the technological capabilities of the method by expanding the range of workpieces being processed. Invention Formula A method of manufacturing hollow axially symmetric products with a flange, including the installation of a dimensional workpiece in a matrix, fixing it in the axial direction and flanging flange mounted at an angle to the matrix axis, characterized in that, in order to improve the surface quality of products and expand technological capabilities by uve5 0 moving workpiece relative 50 dies in the direction of the punch.